![Jay Leno Tags in for Jimmy Fallon for The Tonight Show Monologue [VIDEO]](http://townsquare.media/site/10/files/2015/10/Screen-Shot-2015-10-07-at-6.06.22-AM-630x394.png?w=980&q=75)
Jay Leno Tags in for Jimmy Fallon for The Tonight Show Monologue [VIDEO]
Jay Leno still has his chops for jokes. He stopped in last night to surprise viewers and tag in for Jimmy Fallon during the monologue. Leno was there to promote his new show on CNBC, Jay Leno's Garage.